Question

The amount of money that is left in a medical savings account is expressed by the equation y= -24x+379, where x represents the number of weeks and y represents the amount of money, in dollars, that is left in the account. After how many weeks will the account have $67 left in it? 10 weeks 13 weeks 15 weeks 21 weeks

Answer 1

13 weeks is the answer

Answer 2

y = -24x + 379

y represents money left
x represents weeks

We are finding the amount of weeks for the account to have $67 left.

Substitute y = 67

67 = -24x + 379
-312 = -24x

Divide both sides by -24 to get x by itself,

x = 13

Therefore the answer is 13 weeks!

Hope this helped!